19389713

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1451}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 4028143

約数列:

[1, 7, 23, 83, 161, 581, 1451, 1909, 10157, 13363, 33373, 120433, 233611, 843031, 2769959, 19389713]

約数ペア:

[(1, 19389713), (7, 2769959), (23, 843031), (83, 233611), (161, 120433), (581, 33373), (1451, 13363), (1909, 10157)]